That's not quite what I meant. I'm not asking why this network exists rather than the other one. My point is that when we read the phrase "Christian phone network," we all immediately know that it's going to be something that blocks homosexual content rather than something that donates to feed the hungry, just from those three words. The rhetorical question is, why is that what the word "Christian" means now?

It's the same answer. Polarization pressure causes us to hear the word "Christian" and think only of the controversial parts of Christianity. Notice how you yourself are focusing on their block of LGBT content, even though the source article makes it clear their primary focus is blocking pornography.

You could define the product according its proponents' values, rather than focusing on where they disagree with yours. Then it'd be less polarizing. But I suspect you'd argue that it's less informative to do that, perhaps even outright misleading.